Here’s some potentially rare alarms I found in the wild while looking at online homes:
![image|556x417]
(upload://6Cahc0fXHqQugcItcUxwy0exWEd.jpeg) 
If images don’t show up, here’s a list:
SA76RC with missing battery and cover
SA150LTD
Weird Montgomery Wards/Mastercraft with a heat sensor or button in the middle
Coleman Sheltra (yes those exist, there are models CB and CADC i believe)
FireX CEC (CB/CC with escape light)
Some type of wired Dicon (Looks like the British BRK 770MBX, but somehow found some alarm like it in a US home)
Some alarm that looks the Vigilante ES7 but no test button
ESL 709-2 with wood cover
(Turns out uploading from mobile works)